GEAR WHEELED HYDRAULIC PUMP WITH TWO SENSES OF ROTATION

摘要

The invention relates to a gear wheeled hydraulic pump which, depending on the necessities, allows the rotation both in one sense and in the other one and is capable of providing a flow of oil delivered under pressure, in both rotation situations, through the same connection hole, which is meant for a hydraulic driving installation. According to the invention, the pump consists of a casing (), closed by two covers () of identical shape, each of them having a centering shoulder and some holes for fixing the casing (), inside which there are two gear wheels (), namely a driving and a driven one, respectively, which are engaged to one another, being mounted on four plates () by means of four sliding bushes (), the driving gear wheel () having a central orifice having, at both ends, the same bore hole, wherein there is fixed a driving head () secured with a left or right screw (), depending on the necessities, the free end being protected by means of a plug (), the delivery under pressure taking place in the same direction, in both senses of rotation.